This circuit was found in Motorola documentation from 1968, using high power transistors and operated at 580 Hz. The circuit employs a special transformer.
Suggested by an American publication of 1964 this circuit is intended for the capture of signals...
We found this circuit in a 1980s General Electric documentation. It appears from other sources in this...
Hughes suggests this circuit in a 1968 documentation. The circuit uses old transistors that can be...